Commit graph

12 commits

Author SHA1 Message Date
Alan Modra
4ce794b729 * elf64-ppc.c: Convert to C90 function definitions, remove unnecessary
prototypes and casts.  Replace PTR with void *.  Format copyright.
	Mention ABI links.
	(struct ppc_link_hash_table): Rename sgot, srelgot, splt, srelplt,
	sdynbss, srelbss, sglink, sbrlt and srelbrlt to got, relgot .. relbrlt.
	(ppc_type_of_stub): Make r_type an enum.
	(ppc64_elf_size_stubs): Likewise.
	* elf64-ppc.h: Remove PARAMS macro.
2003-06-20 05:30:46 +00:00
Alan Modra
d2a300cfe3 * elf64-ppc.c (ppc64_elf_reloc_type_lookup): Tidy prototype.
(ppc64_elf_info_to_howto): Likewise.
	(ppc64_elf_build_stubs): Add "stats" param, and print statistics.
	* elf64-ppc.h (ppc64_elf_build_stubs): Adjust prototype.
2003-06-19 13:50:35 +00:00
Alan Modra
9b5ecbd0c6 * elf64-ppc.c (toc_adjusting_stub_needed): New function.
(ppc64_elf_next_input_section): Use it here to set has_gp_reloc.
	Return error condition.
	(ppc64_elf_size_stubs): Restrict toc adjusting stubs to sections
	that have has_gp_reloc set.
	(struct ppc_link_hash_table): Add stub_count.
	(ppc_build_one_stub): Increment it.
	(ppc64_elf_link_hash_table_create): zmalloc rather than clearing
	individual fields.
	* elf64-ppc.h (ppc64_elf_next_input_section): Update prototype.
2003-06-19 11:49:02 +00:00
Alan Modra
ad8e1ba599 * elf64-ppc.c: Move TARGET_LITTLE_SYM and other macros used by
elfxx-target.h so that we can use elf_backend_got_header_size.
	(ELF_MACHINE_ALT1, ELF_MACHINE_ALT2): Delete.
	(GLINK_CALL_STUB_SIZE): Modify.  Define new glink call stub and
	associated macros.
	(ppc64_elf_howto_raw <GOT_TPREL16_DS, GOT_TPREL16_LO_DS>): Correct
	dst_mask.
	(enum ppc_stub_type): Add ppc_stub_long_branch_r2off and
	ppc_stub_plt_branch_r2off.
	(struct ppc_stub_hash_entry): Reorganize.
	(struct ppc_link_hash_table): Add no_multi_toc, multi_toc_needed,
	toc_curr, toc_off and emit_stub_syms.
	(ppc64_elf_link_hash_table_create): Init them.
	(ppc_stub_name): Correct string size.
	(ppc64_elf_check_relocs): Set has_gp_reloc on GOT and TOC relocs.
	(ppc64_elf_size_dynamic_sections): Set no_multi_toc if GOT entries
	used.
	(ppc_type_of_stub): Tweak root.type test.
	(build_plt_stub): Remove glink code.  Adjust for insn macro changes.
	(ppc_size_one_stub): Handle ppc_stub_long_branch_r2off and
	ppc_stub_plt_branch_r2off.
	(ppc_build_one_stub): Likewise.  Fix var shadowing.  Correct addis,addi
	range test.  Use toc_off to calculte r2 values.  Handle emit_stub_syms.
	(ppc64_elf_setup_section_lists): Remove htab creator flavour test.
	Initialize elf_gp and toc_curr.
	(ppc64_elf_next_toc_section, ppc64_elf_reinit_toc): New functions.
	(ppc64_elf_next_input_section): Set toc_off.
	(group_sections): Ensure groups have the same TOC.
	(ppc64_elf_size_stubs): Check whether we need a TOC adjusting stub.
	(ppc64_elf_build_stubs): Add emit_stub_syms param, and stash in htab.
	Build new glink stub.
	(ppc64_elf_relocate_section): Handle multiple TOCs.  Fix comments.
	(ppc64_elf_finish_dynamic_sections): Adjust DT_PPC64_GLINK.
	* elf64-ppc.h (ppc64_elf_build_stubs): Update prototype.
	(ppc64_elf_next_toc_section, ppc64_elf_reinit_toc): Declare.
	* section.c (struct sec): Rename flag12 to has_gp_reloc.
	(STD_SECTION): Update.
	* ecoff.c (bfd_debug_section): Update comment.
	* bfd-in2.h: Regenerate.
2003-06-08 14:06:38 +00:00
Alan Modra
951fd09be7 * elf64-ppc.c (TLS_GD_LD): Don't define..
(TLS_GD): ..define this instead and update all uses.
	(TLS_TPRELGD): Define.
	(ppc64_elf_link_hash_table_create): Tweak initialization of
	init_refcount and init_offset.
	(ppc64_elf_check_relocs): Add one extra element to t_symndx array.
	Mark second slot of GD or LD toc entries.
	(get_tls_type): Return an int.  Distinguish toc GD and LD entries
	from other tls types.
	(ppc64_elf_tls_setup): New function, split out from..
	(ppc64_elf_tls_optimize): ..here.  Don't optimize when symbols are
	defined in a dynamic object.  Fix LD optimization.  Don't set TLS_TPREL
	on GD->IE optimization, use TLS_TPRELGD instead.  Use get_tls_type
	return value to properly decide whether toc GD and LD entries can
	optimize away __tls_get_addr call.  Check next reloc after DTPMOD64
	to determine GD or LD rather than looking at TLS_LD flag.  Don't
	attempt to adjust got entry tls_type here..
	(allocate_dynrelocs): ..instead, adjust got entry tls_type here, and
	look for possible merges.
	(ppc64_elf_size_dynamic_sections): Adjust local got entries for
	optimization.
	(ppc64_elf_size_stubs): Tweak __tls_get_addr fudge.
	(ppc64_elf_relocate_section): Rename some vars to better reflect usage.
	Make use of return value from get_tls_type to properly detect GD and
	LD optimizations.  Split tlsld/gd hi/ha from lo/ds case.  Don't
	handle tls_get_addr removal when looking at REL24 relocs, do it when
	looking at the previous reloc.  Check reloc after DTPMOD64 to determine
	GD or LD.
	* elf64-ppc.h (ppc64_elf_tls_setup): Declare.
2003-02-09 04:36:23 +00:00
Alan Modra
411e1bfb66 * reloc.c: Add PPC and PPC64 TLS relocs.
* libbfd.h: Regenerate.
	* bfd-in2.h: Regenerate.
	* elf64-ppc.c (TP_OFFSET, DTP_OFFSET): Declare.
	(ppc64_elf_howto_raw): Add TLS howto's.  Adjust R_PPC64_NONE to be
	against a 32 bit field.
	(ppc64_elf_reloc_type_lookup): Handle TLS relocs.
	(_ppc64_elf_section_data): Add t_symndx and comments.
	(ppc64_elf_section_data): Use elf_section_data macro.
	(ppc64_elf_new_section_hook): American spelling.
	(struct got_entry, struct plt_entry): New.
	(MUST_BE_DYN_RELOC): Rename from IS_ABSOLUTE_RELOC.
	(struct ppc_stub_hash_entry): Add "addend" field.
	(struct ppc_link_hash_entry): Add "tls_type".
	(TLS_TLS, TLS_GD_LD, TLS_LD, TLS_TPREL, TLS_DTPREL,
	TLS_EXPLICIT): Define.
	(struct ppc_link_hash_table): Add tls_sec, tls_get_addr, tlsld_got.
	(link_hash_newfunc): Init new fields.
	(ppc64_elf_link_hash_table_create): Likewise.  Set init_relcount and
	init_offset to NULL.
	(ppc64_elf_copy_indirect_symbol): Copy got and plt info.  Don't call
	_bfd_elf_link_hash_copy_indirect, rather insert relevant code from
	there.
	(update_local_sym_info, update_plt_info): New functions.
	(ppc64_elf_check_relocs): Use them.  Handle TLS relocs.  Adjust GOT
	handling to use got.glist rather than got.refcount.  Likewise for PLT.
	(ppc64_elf_gc_sweep_hook): Handle TLS relocs, new GOT and PLT lists.
	(func_desc_adjust): Adjust for new PLT list.
	(ppc64_elf_adjust_dynamic_symbol): Likewise.
	(get_sym_h, get_tls_type): New functions.
	(ppc64_elf_edit_opd): Remove unused variable.  Use get_sym_h.
	(ppc64_elf_tls_optimize): New function.
	(allocate_dynrelocs): Adjust for new PLT and GOT lists.  Allocate
	TLS relocs.
	(ppc64_elf_size_dynamic_sections): Likewise.
	(ppc_type_of_stub): Adjust for new PLT list.
	(ppc_build_one_stub): Likewise.
	(ppc64_elf_size_stubs): Likewise.  Use get_sym_h.  Treat __tls_get_addr
	calls specially.
	(ppc64_elf_relocate_section): Adjust for new GOT and PLT lists.  Handle
	TLS relocs.  Report local syms using bfd_elf_local_sym_name.  Don't
	init GOT entries that have a reloc.  Generate GOT relocs here..
	(ppc64_elf_finish_dynamic_symbol): ..not here.  Adjust for PLT list.
	* elf64-ppc.h (ppc64_elf_tls_optimize): Declare.
2003-02-04 14:50:50 +00:00
Alan Modra
b34976b65a s/boolean/bfd_boolean/ s/true/TRUE/ s/false/FALSE/. Simplify
comparisons of bfd_boolean vars with TRUE/FALSE.  Formatting.
2002-11-30 08:39:46 +00:00
Alan Modra
d6fe2dc102 * elflink.h (elf_link_add_object_symbols): Optimize stabs for
relocatable link too.
	(elf_link_input_bfd): When emitting relocs, adjust offsets for
	eh_frame and stab sections.  Zap deleted relocs.
	(elf_reloc_symbol_deleted_p): Return true for zero r_symndx.
	(elf_bfd_discard_info): Run for relocatable link too.
	* elf64-ppc.c (ppc64_elf_edit_opd): Rename from edit_opd.  Make global.
	Handle ld -r case.
	(ppc64_elf_size_dynamic_sections): Don't call edit_opd from here.
	* elf64-ppc.h (ppc64_elf_edit_opd): Declare.
2002-11-12 07:55:43 +00:00
Alan Modra
1e2f5b6e6b * elflink.h (elf_gc_mark): Pass in the section whose relocs we are
examining to gc_mark_hook, rather than the bfd.
	(elf_gc_sections): Adjust.
	* elf-bfd.h (struct elf_backend_data <gc_mark_hook>): Likewise.
	* elf-m10300.c (mn10300_elf_gc_mark_hook): Likewise.
	* elf32-arm.h (elf32_arm_gc_mark_hook): Likewise.
	* elf32-avr.c (elf32_avr_gc_mark_hook): Likewise.
	* elf32-cris.c (cris_elf_gc_mark_hook): Likewise.
	* elf32-d10v.c (elf32_d10v_gc_mark_hook): Likewise.
	* elf32-fr30.c (fr30_elf_gc_mark_hook): Likewise.
	* elf32-hppa.c (elf32_hppa_gc_mark_hook): Likewise.
	* elf32-i386.c (elf_i386_gc_mark_hook): Likewise.
	* elf32-m32r.c (m32r_elf_gc_mark_hook): Likewise.
	* elf32-m68k.c (elf_m68k_gc_mark_hook): Likewise.
	* elf32-mcore.c (mcore_elf_gc_mark_hook): Likewise.
	* elf32-openrisc.c (openrisc_elf_gc_mark_hook): Likewise.
	* elf32-ppc.c (ppc_elf_gc_mark_hook): Likewise.
	* elf32-s390.c (elf_s390_gc_mark_hook): Likewise.
	* elf32-sh.c (sh_elf_gc_mark_hook): Likewise.
	* elf32-sparc.c (elf32_sparc_gc_mark_hook): Likewise.
	* elf32-v850.c (v850_elf_gc_mark_hook): Likewise.
	* elf32-vax.c (elf_vax_gc_mark_hook): Likewise.
	* elf32-xstormy16.c (xstormy16_elf_gc_mark_hook): Likewise.
	* elf64-mmix.c (mmix_elf_gc_mark_hook): Likewise.
	* elf64-ppc.c (ppc64_elf_gc_mark_hook): Likewise.
	* elf64-s390.c (elf_s390_gc_mark_hook): Likewise.
	* elf64-sh64.c (sh_elf64_gc_mark_hook): Likewise.
	* elfxx-mips.c (_bfd_mips_elf_gc_mark_hook): Likewise.
	* elfxx-mips.h (_bfd_mips_elf_gc_mark_hook): Likewise.
	* elf64-x86-64.c (elf64_x86_64_gc_mark_hook): Likewise.
	* elf32-frv.c (elf32_frv_gc_mark_hook): Likewise.  Also remove
	redundant local sym tests.
	* elf64-ppc.c (struct ppc_link_hash_entry): Add is_entry.
	(link_hash_newfunc): Init is_entry.
	(ppc64_elf_copy_indirect_symbol): Copy is_entry.
	(ppc64_elf_link_hash_table_create): Init all_local_syms.
	(create_linkage_sections): Use bfd_make_section_anyway rather than
	bfd_make_section.
	(ppc64_elf_mark_entry_syms): New function.
	(ppc64_elf_check_relocs): Don't bother testing elf_bad_symtab.  Set
	up opd entry to function section map.
	(ppc64_elf_gc_mark_hook): Special case opd section relocs, and
	relocs that reference the opd section.
	(edit_opd): New function.
	(ppc64_elf_size_dynamic_sections): Call get_local_syms and edit_opd.
	(ppc64_elf_setup_section_lists): Don't calculate htab->bfd_count here.
	(get_local_syms): Do so here.  Exit if we already have local syms.
	Remove bogus comment imported from elf32-hppa.c.  Don't attempt to
	read local syms on non-ELF input.
	(ppc64_elf_size_stubs): Call _bfd_elf64_link_read_relocs rather
	than duplicating it's function here.  Adjust free of internal
	relocs to suit.
	(ppc64_elf_relocate_section): Adjust local syms in opd section.
	* elf64-ppc.h (ppc64_elf_mark_entry_syms): Declare.
	* elf32-hppa.c (elf32_hppa_size_stubs): Call
	_bfd_elf32_link_read_relocs rather than duplicating it's function
	here.  Adjust free of internal relocs to suit.
2002-07-01 08:06:47 +00:00
Alan Modra
805fc79928 * elf64-ppc.c (ppc64_elf_addr16_ha_reloc): Delete.
(ppc64_elf_ha_reloc): New function.
	(ppc64_elf_brtaken_reloc): New function.
	(ppc64_elf_sectoff_reloc): New function.
	(ppc64_elf_sectoff_ha_reloc): New function.
	(ppc64_elf_toc_reloc): New function.
	(ppc64_elf_toc_ha_reloc): New function.
	(ppc64_elf_toc64_reloc): New function.
	(ppc64_elf_unhandled_reloc): New function.
	(ppc64_elf_howto_raw): Use the above.
	<R_PPC64_RELATIVE>: Mark pc_relative, pcrel_offset.
	<R_PPC64_SECTOFF>: Not pc_relative or pcrel_offset.  Fix dst_mask.
	<R_PPC64_SECTOFF_DS>: Likewise.
	(IS_ABSOLUTE_RELOC): Update.
	(struct ppc_link_hash_table): Add have_undefweak.
	(ppc64_elf_link_hash_table_create): Init.
	(func_desc_adjust): Set have_undefweak.
	(ppc64_elf_func_desc_adjust): Call func_desc_adjust earlier.  Only
	add the .sfpr blr when have_undefweak.
	(ppc64_elf_setup_section_lists): Check hash table flavour.
	(ppc64_elf_next_input_section): Move output_section->owner test to
	ppc64elf.em.
	(ppc64_elf_set_toc): Rename to ppc64_elf_toc, remove info param
	and relocatable test.  Return TOCstart and don't set elf_gp.
	(ppc64_elf_relocate_section): Correct BRTAKEN/BRNTAKEN branch
	offset calculation.  Add assert on weak sym branch tweaks.
	* elf64-ppc.h (ppc64_elf_set_toc): Delete.
	(ppc64_elf_toc): Declare.
	(ppc64_elf_next_input_section): Update.

	* emultempl/ppc64elf.em (gld${EMULATION_NAME}_after_allocation):
	Adjust for ppc64_elf_set_toc change.  #include libbfd.h.
	(build_section_lists): Do output_section tests here.
2002-05-02 09:48:15 +00:00
Alan Modra
721956f4fe * elf64-ppc.c (CROR_151515, CROR_313131): Define.
(ppc64_elf_relocate_section): Use them.  Don't look for plt calls
	on R_PPC64_ADDR24 relocs.  Require a nop or no link reg on plt
	call branches.  Correct undefined weak destination.
	(ppc64_elf_func_desc_adjust): Always create at least one blr in
	.sfpr, and correct case where either only savef* or restf* is
	needed.

	Long branch stubs, multiple stub sections.
	* elf64-ppc.h (ppc64_elf_setup_section_lists): Declare.
	(ppc64_elf_next_input_section): Declare.
	* elf64-ppc.c: Move linker-only prototypes.
	(STUB_SUFFIX): Define.
	(enum ppc_stub_type): New.
	(struct ppc_stub_hash_entry): New.
	(struct ppc_branch_hash_entry): New.
	(struct ppc_link_hash_entry): Add stub_cache, oh.
	(struct ppc_link_hash_table): Add stub_hash_table etc.  Remove
	sstub.  Add sbrlt, srelbrlt, has_14bit_branch, stub_iteration.
	Rename plt_overflow to stub_error.
	(ppc_stub_hash_lookup): Define.
	(ppc_branch_hash_lookup): Define.
	(stub_hash_newfunc): New function.
	(branch_hash_newfunc): New function.
	(link_hash_newfunc): Init new fields.
	(ppc64_elf_link_hash_table_create): Likewise.
	(ppc64_elf_link_hash_table_free): New function.
	(ppc_stub_name): New function.
	(ppc_get_stub_entry): New function.
	(ppc_add_stub): New function.
	(create_linkage_sections): Use bfd_make_section_anyway.  Create
	.branch_lt and .rela.branch_lt sections.  Don't create .stub.
	(ppc64_elf_check_relocs): Set has_14bit_branch on R_PPC64_REL14*,
	and set up for plt call stubs.  Link func and func desc syms.
	(ppc64_elf_gc_sweep_hook): Handle REL14* as per REL24.
	(func_desc_adjust): Avoid hash lookup when func desc sym available
	via shortcut, and set links when processing.
	(ppc64_elf_hide_symbol): Likewise.
	(allocate_dynrelocs): Don't allocate stub section here.
	(ppc64_elf_size_dynamic_sections): Handle sbrlt and srelbrlt.
	Remove sstub code.
	(ppc_type_of_stub): New function.
	(build_one_stub): Delete.
	(ppc_build_one_stub): New function.
	(ppc_size_one_stub): New function.
	(ppc64_elf_setup_section_lists): New function.
	(ppc64_elf_next_input_section): New function.
	(group_sections): New function.
	(get_local_syms): New function.
	(ppc64_elf_size_stubs): Rewrite.
	(ppc64_elf_build_stubs): Rewrite.
	(ppc64_elf_relocate_section): Look up stub entry for REL24
	relocs.  Don't propagate REL14* to dynamic objects.  Look for long
	branch stubs if REL14* or REL24 relocs won't reach.
	(bfd_elf64_bfd_link_hash_table_free): Define.
2002-05-01 02:34:20 +00:00
Alan Modra
5d1634d792 * elflink.c (_bfd_elf_create_dynamic_sections): Don't set SEC_CODE
when plt_not_loaded.
	* elf64-ppc.c (ppc64_elf_create_dynamic_sections): No need to
	clear .plt SEC_CODE here.  Create .stub and correct .glink flags.
	(PLT_INITIAL_ENTRY_SIZE): Set to 24.
	(ppc64_elf_glink_code): Delete.
	(PPC64_ELF_GLINK_SIZE): Delete.
	(ADDIS_R12_R2, STD_R2_40R1, LD_R11_0R12, LD_R2_0R12, MTCTR_R11,
	BCTR, ADDIS_R12_R12_1, LD_R2_40R1, NOP, LI_R0_0, B_DOT, LIS_R0_0,
	ORI_R0_R0_0): Define.
	(PLT_CALL_STUB_SIZE, GLINK_CALL_STUB_SIZE): Define.
	(struct ppc_link_hash_table): Add sstub and plt_overflow.
	(ppc64_elf_link_hash_table_create): Init them.
	(ppc64_elf_check_relocs <R_PPC64_REL24>): Refcount .plt entry.
	Don't copy to shared lib.
	(ppc64_elf_check_relocs): Call bfd_set_error on errors.
	(ppc64_elf_gc_sweep_hook <R_PPC64_REL24>): Sweep plt refcount.
	(allocate_dynrelocs <plt>): Don't change function sym here.  Make
	room for .stub and .glink code.
	(ppc64_elf_size_dynamic_sections): Handle .stub.  Make entry for
	DT_PPC64_GLINK.
	(ppc64_elf_final_link): Rename to ppc64_elf_set_toc.  Don't call
	bfd_elf64_bfd_final_link.
	(bfd_elf64_bfd_final_link): Don't define.
	(ppc64_elf_size_stubs): New.
	(build_plt_stub): New.
	(build_one_stub): New.
	(ppc64_elf_build_stubs): New.
	(ppc64_elf_relocate_section <toc relocs>): Remove assert.
	(ppc64_elf_relocate_section): Don't copy R_PPC64_REL24 relocs.
	(ppc64_elf_finish_dynamic_symbol): Don't build stubs here.  Set
	DT_PPC64_GLINK entry.  Tweak DT_PLTGOT, DT_JMPREL, DT_PLTRELSZ in
	case output sections not separate.  Adjust DT_RELASZ to not
	include plt relocs.  Set reserved got entry.  Set got and plt
	entry size.
	(elf_backend_got_header_size): Set to 8.
	* elf64-ppc.h: New file.
2002-01-16 05:50:03 +00:00